This was an interesting idea I played around with, based on the Normandy invasion

The attacker who starts out at sea has access to 6 ore nodes, an allied docks (which can be upgraded fully for aircraft carriers even if the player is soviet/empire) and a dry docks, and a veteran academy.

The defender who starts on the hill has access to 4 ore nodes, all three faction's barracks, some soviet bunkers on the tips of the beach to garrison with the 3 factions troops, a hospital, garage, and airport, and has for obvious reasons a well defended location.